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What is automated testing
A practice that transforms the testing behavior of people on software into the testing behavior performed by machines.
For example, GUI automated testing, simulating people to operate the software interface, liberating people from simple and repetitive labor.
The essence is to use code to test another piece of code, which is a kind of software development work. The used cases that have been developed must also be updated as the tested object changes. Therefore, there are additional maintenance costs.
What are the classifications of automated testing
Classification by test purpose
Functional automation test
Performance automated testing
Classification by test object
Web application testing
APP test
Interface test
unit test
Why do we need automated testing
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It can replace a large number of manual and mechanical repetitive operations, and test engineers can spend more time on use case design and new function testing
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Can greatly improve the efficiency of regression testing, very suitable for agile development process
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Can make better use of unattended time to perform tests more frequently
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It can efficiently implement certain types of tests that cannot be completed by manual testing or are costly, such as: system stability testing that runs continuously for 7*24 hours and stress testing of high concurrency scenarios
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It can ensure that the operations performed each time are consistent and repeatable, and will not be affected by human emotional factors.
Postman automated test demonstration
Everyone uses postman quite a lot, so I won’t introduce how to use it. If you need postman video information, please private message
1. Create a new collection
Just to classify the interfaces to be tested uniformly
2. New interface
Below is what I added
3. Fill in the automated test script
For example, I need to test a few points
1.http status code 200
2. The code code of the returned json is 0
3. The interface return time is not less than 1000 milliseconds, the script is as follows
//View httpCode code
tests["interface status code 200"] = responseCode.code === 200;
//Judging the request time
tests["Return time is less than 1000 milliseconds"] = responseTime <1000;
//Return body to json
var data = JSON.parse(responseBody);
//Check json data
tests['code must be 0']= data.code==0
The test results are as follows
4. Enter all interfaces
Then I want to perform such a test on all interfaces, and enter all these interfaces, as follows
5. Perform automated testing
Click the Run button of the collection
The following interface pops up, you can fill in the corresponding parameters, here I use the default
Click Run, the execution result is as follows
As you can see, we tested 32 interfaces, of which 25 passed and 7 failed. Some of them did not meet the time requirements, and some of them had incorrect status codes.
For this result, we can optimize the interface ourselves, it's that simple, light weight baby!
In addition, Postman also launched a command-line version of Newman, which can cooperate with Jenkins for automatic interface testing and continuous integration.
Finally: benefits given to testers
In the technology industry, you must improve your technical skills and enrich your practical experience in automation projects. This will be very helpful for your career planning in the next few years and the depth of your testing technology.
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